Unless the database is configured for sql statement replication, the transaction log does not contain any query text that would be useful to your investigation. The log contains records showing the changes made to the binary data stored on each page as the result of data modifications (DML) only.
You might consider setting up auditing of cmdtext and waiting for the issue to happen again. The audit tables would then contain the queries run.
You might also consider posting a detailed description of the issue, we might be able to recognize it or give further suggestions on how to reproduce it.
-bret